Mac version, please!
The lack of piece vertical piece rotations makes this game much harder than Blockout. After a while the only piece that could clear a level was a single vertical line or a piece with a downward projecting single cube. Those are rare enough that inevitably I have to cover holes just to keep going. It's like playing Tetris without being able to rotate and hoping that a line drops already pointing vertically.
Certain pieces could be rotated vertically. Any straight line could, and any piece with a single bend. The vertical 2x2 square couldn't, nor the horizontal four blocks in a tight curve. Removing any piece which contained those configurations, it would be possible to make a version of Bringis with Blockout-like rotation controls.